September 30, 2010 Update to Functional Equations Reference (version 1.3) This is a substantial update of this reference document. The most important addition is the chain and substitution rules for arithmetic difference calculus (ADC)….

August 25, 2010 Update to Functional Equations Reference I have updated the Reference for Functional Equations. I have added several entries to the tables, updated the graphs, added some new graphs, added…

April 7, 2010 Poisson Disk Sampling Example Code I decided to put the Poisson disk sampling code here for download since the site that hosted it is down. The code accompanies the…

October 24, 2009 Guerrilla Tool Development Tools for editing game levels and AI for your own games are nice to have, but it is not always practical to implement these…

May 28, 2009 Getting More out of Seamless Tiles I wrote an article for Dev.Mag covering some techniques for working with seamless tile sets such as making blend tiles, getting more variety with procedural colour manipulation,…

May 27, 2009 How to Turn XSI Mod Tool into a Level Editor for your XNA Games: Example Updated for XNA 3.0. The example for the tutorial How to Turn XSI Mod Tool into a Level Editor for your XNA Games: Updated for XNA 3.0 have also been…

May 27, 2009 Update: Reference for Functional Equations In this new version of Reference for Functional Equations I added several more z-transform pairs. I also started to add binomial transform pairs. The definition for…

February 26, 2009 A Reference for Functional Equations I have not posted in a while; one reason is that I got sucked into some interesting mathematics; the work-in-progress Reference for Functional Equations is…